I've been wanting to learn CAD for a while but never really had the spare time. Over the past few months I've been reading the various tutorials, and JCL's brilliant thread, but it wasn't until I broke my toes and had an enforced two weeks of sitting down that I finally got the hang of blender (or at least I think I've finally got it)
I've made loads of mistakes. Firstly I was modelling things in real life scale then attempting to scale down so the thinnest parts were well under the acceptable standards. Seems to be better to build things in the final scale in mm and always keep the minimum thickness in the back of your head. I also had more internal faces than Worzel Gummidge, which proved to be a problem with a few things I was working on.
Anyway, the bench. I've no idea how to do screenshots in blender and the F12 render I've not got the hang of (as the camera is too far away?), so here's a normal screenshot.
At first I couldn't get it through shapeways in 4mm, and due to various problems while building it, I deleted a large part and started again but in 1/12 scale (so at least it could get some use for a dollshouse). It only took a bit of fiddling afterwards for shapeways to accept it in WSF. The price is working out a bit high, but with the planks removed it's much better. I did make a sprue of 2 bench ends, thinking that would be cheaper than buying 2 individual ends, but it worked out a lot more than double the price of one.
The order's placed, plus a few other bits and bobs I was working on. I haven't actually seen anything 3d printed yet and I've read enough about the quality to not be expecting it to look exactly like the renders.
Also, after placing the order I had a thought about scaling it down to 7mm. It only needed an extra 0.1mm of thickness to get it through on FUD, which surprised me.
I've still got another week or two of light duties, so the next things I'm 3d building are a Rover class Broad Gauge bodyshell, a few wagon sides and maybe an underframe for 7mm narrow gauge. I'm already halfway through a simplex (I think everyone does a simplex!), a Kitson Tram and a couple of GWR carriage sides.